"""Bundled station, so a cold offline start still makes sense.

Bassdrive is one station with three mounts and a handful of mirror hosts; the
streams below are the ones its own ``.m3u`` files list.  The live status-json
always wins when it is reachable.
"""

from __future__ import annotations

from typing import Any

# (url, format, quality, bitrate)
_MOUNTS: tuple[tuple[str, str, str, str], ...] = (
    ("https://ice.bassdrive.net:443/stream", "mp3", "highest", "128"),
    ("https://ice.bassdrive.net:443/stream56", "aacp", "high", "56"),
    ("https://ice.bassdrive.net:443/stream32", "aacp", "low", "32"),
)

#: Alternative servers from bassdrive.m3u, tried when the primary is down.
_MIRRORS: tuple[str, ...] = (
    "http://chi.bassdrive.co:80",
    "http://bassdrive.radioca.st:8702",
    "http://stream.bassdrive.uk:8200",
    "http://au.bassdrive.co:8000",
)

_SERVER_TYPE = {"mp3": "audio/mpeg", "aacp": "audio/aacp"}


def fallback_status() -> dict[str, Any]:
    """A ``status-json.xsl``-shaped payload, so the normal parser can eat it."""
    return {
        "icestats": {
            "source": [
                {
                    "listenurl": url,
                    "bitrate": int(bitrate),
                    "server_type": _SERVER_TYPE.get(fmt, "audio/mpeg"),
                    "listeners": 0,
                    "display-title": "",
                }
                for url, fmt, _quality, bitrate in _MOUNTS
            ]
        }
    }


def fallback_stations() -> list[Any]:
    from .api import station_from_status

    station = station_from_status(fallback_status())
    return [station] if station is not None else []


def known_stream_urls() -> list[str]:
    return [url for url, _format, _quality, _bitrate in _MOUNTS] + list(_MIRRORS)